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so.. i bought this peltier and 2 heatsink + fan, and then i connect them to the adaptor 12 V, the fan works fine, but the peltier doesn't get cool, it just around 25C, and the heat also not very hot either, is there any ways to make my peltier cooler? *sorry for my bad english

Would a TEC1-12705 Peltier Thermo Cooling Generator work for this project? It's 12-14V DC and 3-5A and a maximum 30W. The maximum difference in temperature is 60 ° c. I'm assuming that it would work, but I want a second opinion.

Also, I saw your heat sink and noticed it was quite small. Do they all have to be around this size? Do I need a larger heat sink for a larger volume of space?

Does it matter where I put the heat sink/peltier unit? Like say would I get different temperature drops if I put it on the bottom, top, sides, or rear.

I noticed that you put a piece of metal onto the peltier unit to place objects on and I think this limits the fridges holding capacity. Do I absolutely need a piece of metal for the objects to sit on or can I just have the peltier unit somewhere in the container and let it still cool what's inside.

That Peltier unit would do just fine. However, make sure whatever power supply your using can supply 30 watts. The heatsink size is up to you, bigger would be more effective. Location shouldn't matter either. If you're trying to cool a space, put a heatsink on both sides, a fan on the heat sink for the cold side would help the enclosure cool down faster.

Thanks for the fast reply! Yes I will be sure the power supply can supply at least 30 watts. I think I'd rather have the heat sink be at the bottom rear just for convenience. Does the fan blow in or out?

wouldnt it be better if u put the peltier on top of the fridge (i llove ur fridge) cuz cold air drops and hot air rizes, and put a heatsink on the coolside of the peltier en aheatsink with fan on the hot side? and is is possible to connect this on usb power suply (drinks when gaming :) )

better results? of course there has been many research about heat and cold, take he central heating system: cold air comes from the bottom an gets heated up then it rises traveling to the top. but, if u put the cold side at the bottom then the drink is touching the heat-sink, if the drink is in a can then the metal conducts the heat better than just cooling the air in the fridge. conclusion: cold goes down and heat rises, contact with the object conducts the heat easier PS made my own fridge :P it holds 2 1.5 ltr cola bottles

Ohk Im Slightly Confused (Like Always :D) Anyways Could you just use a Heatsink Unit.. My Idea was to Get a Foam Box or a Cooler and Install a heatsink unit and 2 Fans on the sides connected to an Old PC Power Supply? Would that Work?

Cool, I just have a couple of suggestions:
1. Using thermal paste will greatly improve heat transfer
2. I noticed in the video that a lot of the heat sink from the hot side is inside of the refrigerator. This will prevent the inside of the refridgerator from becoming cool.

Did you use a peltier unit? I'm thinking of making something like this. I have plenty of materials for the case and insullatio, and I'll buy a peltier if I must, but my problem is with the heatsink. I found an "Evercool Chipset Thermal Package" in my familys computer desk. It's been in there collecting dust for years, It's probably long been obsolete. I'm sure it works, It's just I have no Idea how to use it or power it, and the page came with no instructions (It was pretty cheap).